Cowl ventilator



G. J. HEN V18.

COWL VENTILATOR.

APPLICATION FILED APR. 28, I920.

Patented Apr. 11, 1922.

2 SHEETSSHEET I.

Ivwz

G. J. HENVIS.

vCOWL VENTILATOB.

APPLICATION mm APR. 28. 1920.

2 SHEETS-SHEET 2.

1,412,61 3. Pat nted Apr. 11, 1922.

UNITED STATES GABN'ETT J. HENVIS, O]? PHILADELPHIA, PENNSYLVANIA.

COWL VENTILATOR.

Application filed April 28, 1920.

1 '0 all vii/mm it may concern:

Be it known that I, GARNET! Pl. llnsvis. a citizen of the United States, residing in lhiladelphia, Pennsylvania. have invented certain Improvements in (owl Ventilators of which the following is a specification h ly invention relates to ventilators, and more particularly to ventilators adapted to he established in the cowl of an automobile whereby air may be admitted to the interior of the body, the object of my invention l eing to provide a ventilator of the type stated the construction of which is light and suln stantia-l. and which comprises means normally preventing movement of the parts rel ative to each other and to the body of the automobile with a coi'isequcnt elimination of the rattling sounds so prevalent in devices of this nature.

In the attached drawings:

, Figure 1. is a vertical section taken on. the line 11, Fig. 3;

Fig. 2, is a vertical section similar to that of Fig. 1. showing the ventilator in open position;

Fig. 3, is a perspective of the ventilator device showing it in the closed position and Figs. 4 and 5. are sectional views similar to those of Figs. 1 and 2, and illustrating the action of the rattle-preventing means.

With reference to the drawings. my invention consists of an open frame 1. adapted to be secured in an opening in the cowl of an automobile, to which frame is movably se cured the door 2, said door in the present in stance having arms 8, 3, the outer ends of which are pivotally secured to suitable lugs 4t, 4, upon the frame. As shown, the arms 3 are substantially of hell crank formation and permit movement of the door from the closed position shown in Fig. 1 to the open position of Fig. 2.

Pivotally secured to lugs 5, 5, upon the door 1 is one end of an operating lever 6, said lever passing through a slot '7 formed in a yoke member 8 extending in the present instance from one side of the said. frame to the other. A button or spring guard 10 is slidahly mounted upon the lever (3 beyond the yoke member 8, and interposed between the said button member 10 and a handle 9 upon the outer end of the operating lever, is a spring 11 which exerts a pressure tending to force the button 10 downwardly against the outer surface of the yoke 8. This tendency of the spring 11 to pull the lever 6 out Specification of Letters Patent.

Patented Apr. -1'1, 1922..

Serial. No. 377,272.

wardly through. the slot 7 is counteracted by a suitable projection upon the lever which bears against the inner surface of the yol'ie, said projection in the present instance taking the form of a pin 12 passing through the lever at a pointhet'ween the yoke and the door 1 whereby withdrawal of the said lever through the slot by the p essure of the spring 11 is prevented and the extent of the opening of the door controlled. i

In the present instance the slotted portion. of the yoke 8 lies substantially parallel to the plane of the frame. and the outer end of the ope *ating lever extending through the yoke is formed at an angle to the inner portion. In order to retain the lever at points in the yoke in which the door is made to as sumo the desired positions relative to the frame, recesses 13 and let are provided in the inner face of the yoke 8 which the pin 12 may enter, the pin being retained in the said recesses by the pressure of the spring 11. To assist the spring in this retaining action, elevations l5 and 1.6 are provided upon the outer surface of the yoke substantially opposite the recesses, against the sides of which the uard bears. as clearly shown in the drawings.

Owing to the pressure of the spring ill, there is a continuous tendency for the outer portion of the lever 6 to assume a position substantially normal to that portion of the outer surface of the yoke 8 against which the spring guard 10 is hearing. Accordingly the yoke is preferably so formed as regards the said outer surface that the lever 6 tends to assume a position other than that in which it is retained due to the connection with the door 1 of the inner extremity. This tendency should exist regardless of where the spring guard bears upon the yoke. and as a conse quence a continuous thrust is put upon the door 1 which creates a tension not only upon the joints connecting the door and the frame, but also upon the joint connecting the lever with the door. In the present instance. this tension is applied to the pins 3. 3* and 6 which secure the door to the frame and the operating lever to the door respectively, and all vibration and free motion at these points is prevented with a consequent avoidance of rattling noises.

In Figs. 4 and 5, I have illustrated the lever 6 disconnected from the door and in positions which normally it would assume. and it will be clear from this illustration that in any of these positions, the inner extremity of the lever must be moved from the said. normally assumed position when it is to be secured to the lugs 5 upon the door.

It will be noticed from reference to Fig. 1. that the door 1 when in the closed position does not bear tightly against the frame, the intervening space between the door and the frame providing for the insertion therebetween of the sheet metal of the cowl, and when the frame is in place and the sheet metal of the cowl is carried over the frame, in the manner indicated by broken lines in Fig." 1, a substantially tight joint is formed. between the door and the frame, the door 1 being seated tightly against the surface of the sheet metal.-

The preferred form alone of the invention has been illustrated and described, and it will be apparent that the device is capable of many modifications with no departure from the essential features of the invention.

I claim:

1. A, ventilator comprising in combination a frame, a door operatively associated with the frame, an arm offset from the plane of said frame, and a lever pivotally connected with the door and adjustably mounted on said arm and adapted in difierent positions longitudinally of said arm to retain the door in different positions relative to the frame.

2. A ventilator structure comprising in combination a frame having a door hinged thereto and having a bridge element extending laterally thereof, and a lever carried by said bridge and movable longitudinally thereof and having a pivotal connection with the door, said lever being adapted in different positions longitudinally of said bridge to retain the door in different positions relative to the frame.

3. A ventilator comprising in combination a frame, a door operatively associated with the frame, an arm offset from the plane of said frame, a lever pivotally connected with the door and adjustably mounted on said arm and adapted in different positions longitudinally of said arm to retain the door in different positions relative to the frame, and resilient means tending to retain the lever immovable with respect to the arm 4:. In a ventilator, the combination with a frame, of a door, a hinge joint connecting said door and frame, a yoke carried by the frame, an operating lever pivotally connect ed with the door and slidably mounted in said yoke for moving the door to differing positions relative to the frame, a projection upon the lever abutting one side of the yoke, a spring connected with the lever and tending to force said extension against the side of the yoke which. it abuts, and said. yoke provided with recesses adapted to be entered by said extension upon the lever for retaining the latter in different positions in the yoke.

5. In a ventilator, the combination-with a frame, of a, door, a hinge joint connecting 

